| Altoona to Cortona | 4,408.09 mi (7,094.13 km) |
| Altoona to Cosenza | 4,744.75 mi (7,635.94 km) |
| Altoona to Cossato | 4,165.24 mi (6,703.31 km) |
| Altoona to Costa Volpino | 4,237.40 mi (6,819.44 km) |
| Altoona to Creazzo | 4,305.42 mi (6,928.90 km) |
| Altoona to Crema | 4,236.00 mi (6,817.18 km) |
| Altoona to Cremona | 4,258.81 mi (6,853.90 km) |
| Altoona to Crevalcore | 4,320.48 mi (6,953.15 km) |
| Altoona to Crispiano | 4,734.85 mi (7,620.00 km) |
| Altoona to Crosia | 4,756.43 mi (7,654.73 km) |
| Altoona to Crotone | 4,791.16 mi (7,710.62 km) |
| Altoona to Cuneo | 4,178.86 mi (6,725.22 km) |
| Altoona to Cuorgne | 4,149.27 mi (6,677.60 km) |
| Altoona to Cusano Milanino | 4,208.67 mi (6,773.21 km) |
| Altoona to Cutro | 4,787.38 mi (7,704.55 km) |
